getting property not found exception in jsp

Question

I was trying to display list of entities but I get this error:

javax.el.PropertyNotFoundException: Could not find property drug in class com.google.appengine.api.datastore.Entity

The way to display property is this:

 <c:forEach items="${drugtargets}" var="drugtarget">
<tr>
  <td>${drugtarget.drug}</td>
  <td>${drugtarget.target}</td>
</tr>

I checked my datastore and entities properties and I didn't see any error. My properties are drug and target. Could you please tell me what I should do ? Thanks.

Key drugKey = KeyFactory.createKey("DrugTarget", drug);

Entity drugtarget = new Entity("DrugTarget",drugKey);
drugtarget.setProperty("drug", drug);
drugtarget.setProperty("target", target);

Answer 1

I don't do GAE, but according to the javadoc of that Entity class, which tells that there's a getProperties() method returning a Map<String, Object> with all properties , then you should be able to access the individual properties as follows:

<td>${drugtarget.properties.drug}</td>
<td>${drugtarget.properties.target}</td>

See also:

• Our EL wiki page

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Unrelated to the concrete problem, if this concerns user-controlled data, please keep in mind that this forms a potential XSS attack hole. You should be escaping user-controlled input using JSTL <c:out> or fn:escapeXml() .

<td><c:out value="${drugtarget.properties.drug}" /></td>
<td><c:out value="${drugtarget.properties.target}" /></td>